20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack Reflectors & Grow Lights and is machine-washable

and is machine-washable

Sunshine #4 Natural & Organic is recommended where high air capacity and fast drainage are needed

At SupremeAir we buy only the premium 20% of any carbon produced

exhausting bathrooms and attics

and will provide the nutrients necessary for vigorous and productive plants

20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack Reflectors & Grow Lights and is machine-washableImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 20x25x4 filter